3D Printer problems
Anet A8
Fan problem.

Hey guys.
So, I have a problem with my printer.
The fan that cools the printed model (fan1) isn't working... and everything seems fine.
What should I do to find out what the problem is?
Thanks

First see if the issue is actually your fan. Write some gcode which only starts your fan and slowly accelerates it speed. I had a similar issue with my printer once and I found out I accidentally set the fan speed to 10 in my slicer and it runs from a speed of 15 to 100. A value of less than 15 stops the fan completely.

Check the wiring as well.

Rule number one is? you guessed it... "have you tried to plug your device out and in again? " 😉

Rule number two is? "did you consult google search with the syntax "printer manufacturer Printer model number" + fan doesn't work
Stackexchange and reddit may have an answer.

did you consult the manufacturers website?

@Codex404 Well... Or maybe the gcode I have is wrong...
would you know the gcode to start and stop the fan?

I've been making some upgrades and changed a few stuff, like the initial and end gcode...
btw, the fuking board doesn't let me upload new firmware :( have to flash the bloatware... gonna do it tomorrow to change to Marlin

@heyheni I did the two first points, but I guess there isn't much problem with the fan amongst the community, and there is no manufacturers site...
1- I did something wrong
2- the fan isn't working...
I could test it out directly, but don't know the voltage of the fan...

@GyroGearloose I do write some small parts of gcode manually the last three days. But not sure about fanspeed. Let me find something for you.

I'm making a few gcode scripts which sole purpose it is to make my printhead move without printing (print head is at room temperature) and a few to change led colors.

This I am planning to use to retrieve timing from to see how long my printer takes to complete a task. After that I can use that data for reliable print times.

@GyroGearloose
Every printer has a bit different gcode although most commands are the same.

https://reprap.org/wiki/G-code/...
This is the biggest list of gcode documentation I found. My printer has a public gcode PDF but only includes 50 commands while it supports way more.

@Haxk20 yeah that's why I said write some custom gcode. Works better than any slicer I know since slicers can't do just turning on the fan.

My first printer wasn't a kit so I can't flash custom firmware on it but I'm thinking of buying the Velleman Vertex somewhere next year.

@Codex404 Thanks for the link, I didn't had M106 on my start code, if the Cura doesn't insert it ... that might be it.
I'm printing right now, must wait an hour to test

@Haxk20 Goona power it to 12v
using cura.
@Codex404 the m106 is in the code, after the first layer...

Update...
Stupid me!!!!
It doesn't turn on, on the first layer...
It's on now
lol
problem solved!! uman Herror

Btw, to stick the prints to the bed use hairspray....
works wonders :D

Btw what software do you use to create custom parts? The easier the better...
I know a little of SolidWorks and AutoCAD.
Also MasterCam, ...

@GyroGearloose try Autodesk Inventor, it's really nice.

How about the old school 'grab a multimeter ant track down the point from which on the current is missing' way?

@GyroGearloose The reason why it is not on on the first layer is because the first layer has to cool down slowly while for the other layers it's basically "The faster it cools down the better".

Yep, learned my lesson :D thanks guys

RULE NUMBER ONE OF EE TROUBLESHOOTING:

"At first thou shall check VOLTAGES"

We are not fucking faries...

@Gregozor2121 Yah, I could just pick the multimeter and check if there was voltage output while printing lol
It's a noob question because I wanted to solve this easily and without damaging the machine further...
Already had lots of problems with the auto level sensor (ended up taking it off) and scratching the bed, forcing steppers and such.